128069932 has 12 divisors (see below), whose sum is σ = 226641240. Its totient is φ = 63315296.

The previous prime is 128069917. The next prime is 128069939. The reversal of 128069932 is 239960821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128069939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179518 + ... + 180229.

It is an arithmetic number, because the mean of its divisors is an integer number (18886770).

Almost surely, 2^128069932 is an apocalyptic number.

It is an amenable number.

128069932 is a deficient number, since it is larger than the sum of its proper divisors (98571308).

128069932 is a wasteful number, since it uses less digits than its factorization.

128069932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359840 (or 359838 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 128069932 is about 11316.7986639332. The cubic root of 128069932 is about 504.0601832474.

The spelling of 128069932 in words is "one hundred twenty-eight million, sixty-nine thousand, nine hundred thirty-two".